NAICS 517121: Telecommunications Resellers
This U.S. industry comprises establishments engaged in purchasing access and network capacity from owners and operators of telecommunications networks and reselling wired and wireless telecommunications services to businesses and households (except satellite telecommunications and agents for wireless telecommunications services).  Establishments in this industry resell telecommunications; they do not operate transmission facilities and infrastructure.

Illustrative Examples:

Mobile virtual network operators (MVNOs) (except agents)
Pre-paid calling cards, telecommunications resellers
Wired telecommunications resellers
Wireless telecommunications resellers (except satellite telecommunications and agents) 

ExioML sector: Post and telecommunication services (64)
Region: US | Year: 2022
Sector value added: 1318185.34972 M EUR | Employment: 6912.63288208 thousand persons
Sector GHG emissions: 14755932297.8 kg CO2 eq | Energy carrier net total: 266659.908906 TJ | Carbon intensity: 0.011194125546103478

Company: Bellsouth LLC
Bellsouth Telecommunications, LLC is a subsidiary of AT&T Inc. that provides telecommunications products and services. As an incumbent local exchange carrierincumbent local exchange carrierAn incumbent local exchange carrier (ILEC) is a local telephone company which held the regional monopoly on landline service before the market was opened to competitive local exchange carriers, or the corporate successor of such a firm.https://en.wikipedia.org › Incumbent_local_exchange_carrierIncumbent local exchange carrier - Wikipedia in the southeast United States, the company has contracted extensively with federal agencies to supply voice, data, cellular, and network services.